Went in for a blood draw this morning to see if the creatinine miraculously dropped overnight, but no. It seems that things get suddenly worse more than things get suddenly better.
So I go in for the biopsy tomorrow and find out whether the damaging factor is rejection or BK Virus and to determine the next course of action. It's a tough conundrum. Treat the rejection and the BKV increases. Treat the BKV and the door is open for rejection.
Miraculous improvement not anticipated anytime soon.